//package com.jwt.restapi.config;
//
//import com.jwt.restapi.security.JwtAuthenticationFilter;
//import com.jwt.restapi.security.JwtTokenProvider;
//import org.springframework.context.annotation.Bean;
//import org.springframework.context.annotation.Configuration;
//import org.springframework.security.authentication.AuthenticationManager;
//import org.springframework.security.authentication.AuthenticationManagerResolver;
//import org.springframework.security.config.Customizer;
//import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
//import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
//import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
//import org.springframework.security.config.http.SessionCreationPolicy;
//import org.springframework.security.web.SecurityFilterChain;
//import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
//import org.springframework.security.config.annotation.web.builders.HttpSecurity;
//import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
//import org.springframework.security.crypto.password.PasswordEncoder;
//
//@Configuration
//@EnableWebSecurity
//public class SecurityConfig {
//
//    private final JwtTokenProvider jwtTokenProvider;
//
//    public SecurityConfig(JwtTokenProvider jwtTokenProvider) {
//        this.jwtTokenProvider = jwtTokenProvider;
//    }
//
//    @Bean
//    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
//        System.out.println("Spring Security Configuration Applied");
//        http    .securityMatcher("/api/**")
//                .csrf(csrf -> csrf.disable())
//                .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
//                .authorizeHttpRequests(auth -> auth
//                        .requestMatchers(
//                                "/auth/register",
//                                "/auth/login",
//                                "/swagger-ui/**",
//                                "/swagger-ui.html",
//                                "/v3/api/docs/**"
//                        ).permitAll()  // Allow these routes without authentication
//                        .anyRequest().authenticated()  // Require authentication for other routes
//                );
//
//        return http.build();
//    }
//
//    @Bean
//    public AuthenticationManager authenticationManager(AuthenticationConfiguration config) throws Exception {
//        return config.getAuthenticationManager();
//    }
//
//    @Bean
//    public BCryptPasswordEncoder passwordEncoder() {
//        return new BCryptPasswordEncoder();
//    }
//    //@Bean
//
//}
package com.jwt.restapi.config;

import com.jwt.restapi.security.JwtAuthenticationFilter;
import com.jwt.restapi.security.JwtTokenProvider;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.AuthenticationManagerResolver;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@Configuration
@EnableWebSecurity
public class SecurityConfig {

    private final JwtTokenProvider jwtTokenProvider;

    // Constructor to inject JwtTokenProvider
    public SecurityConfig(JwtTokenProvider jwtTokenProvider) {
        this.jwtTokenProvider = jwtTokenProvider;
    }

    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        System.out.println("Spring Security Configuration Applied");

        // Configuring HttpSecurity to match API routes
        http
                .securityMatcher("/api/**")
                .csrf(csrf -> csrf.disable())  // Disable CSRF for stateless applications
                .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))  // Disable sessions
                .authorizeHttpRequests(auth -> auth
                        .requestMatchers(  // Allow specific routes to be publicly accessible
                                "/auth/register",
                                "/auth/login",
                                "/swagger-ui/**",
                                "/swagger-ui.html",
                                "/v3/api/docs/**"
                        ).permitAll()
                        .anyRequest().authenticated()  // Require authentication for other routes
                )
                // Add JwtAuthenticationFilter before UsernamePasswordAuthenticationFilter
                .addFilterBefore(new JwtAuthenticationFilter(jwtTokenProvider), UsernamePasswordAuthenticationFilter.class);

        return http.build();
    }

    @Bean
    public AuthenticationManager authenticationManager(AuthenticationConfiguration config) throws Exception {
        return config.getAuthenticationManager();
    }

    @Bean
    public BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();  // Password encryption using BCrypt
    }
}